JPH04359295A - Musical score display device - Google Patents

Abstract

PURPOSE:To turn over the pages without interfering a musical performance by turning over a displayed musical score with a simple operation. CONSTITUTION:After program data are displayed (steps 04 and 05), the desired program is selected (steps 07 to 14), the musical score data are displayed (steps 21 to 24) and the pages of the displayed musical score are turned over by the operations of a forward key 13, a back key 14 and others (steps 25 to 31).

Description

[Detailed description of the invention]

0001

[Industrial Field of Application] The present invention relates to a musical score display device.
In particular, the present invention relates to a device that electrically displays musical scores and the like.

0002

BACKGROUND OF THE INVENTION Conventionally, booklet-type music scores have been widely used. This kind of musical score is made by printing the musical score on paper and binding it. If he is a conductor, he places the sheet music on the podium and turns the pages one by one as the performance progresses. Furthermore, even when playing a piano, violin, drums, etc., the pages are turned sequentially as the performance progresses.

[0003] However, it was difficult to turn the pages while playing. Particularly when playing the piano, players had to use both hands to operate the keys, making it especially difficult to turn the pages of the score, and sometimes an assistant sitting next to the performer would turn the pages of the score.

[0004] In addition, there is a problem in that the booklet of a long musical score becomes thick and bulky, making it inconvenient to carry. Furthermore, paper music scores have the problem of becoming dirty or damaged after being used many times, making them difficult to read.

[0005] The present invention has been made to solve the above-mentioned problems, and it is possible to turn the pages of the musical score without any trouble during performance, is convenient to carry, and always makes the musical score easy to read no matter how many times it is used. The purpose is to provide a musical score display device.

[0006]

[Means for Solving the Problems] In order to achieve the above object, the present invention stores musical score information and reads out and displays it in response to an instruction to read the musical score information.

[0007]

[Operation] This allows the musical score to be displayed simply by issuing a reading instruction, and it is possible to easily turn pages of the musical score. In addition, since the musical score information can be stored and read out electronically, the musical score itself will not become difficult to read no matter how many times it is used.
The entire device can be made small and convenient to carry.

[0008]

[Example] 1. Appearance diagram 1 of musical score display device 11 shows the external appearance of musical score display device 11 installed in an electronic musical instrument. The musical score display device 11 has a rectangular plate shape, and a rectangular liquid crystal display device 12 is provided on the top surface. The liquid crystal display device 12 is driven by a bitmap display method, and displays a song list or musical score. A forward (+)
) key 13, back (-) key 14, and mode key 15 are provided. A display density knob 16, a backlight knob 17, foot switch jacks 18, 18, and a power jack 19 are provided on the left side of the musical score display device 11. A card slot 20 is provided on the right side of the musical score display device 11.

The forward key 13 and the back key 14 are used to advance the musical score displayed on the liquid crystal display device 12 to the next page or return to the previous page. Further, by using the forward key 13 and the back key 14, the cursor displayed on one of the song lists displayed on the liquid crystal display device 12 is shifted upward or downward. By using the mode key 15, the liquid crystal display device 1
The display contents of 2 can be switched. When the mode key 15 is turned on while the music list is displayed, the musical score data of the song title whose cursor is displayed is displayed, and when the mode key 15 is turned on while the musical score data is displayed, the state returns to the music list display state.

A display density knob 16 controls the display density of the liquid crystal display device 12, and a backlight knob 17 controls the brightness of the liquid crystal display device 12. Foot switch jacks 18 and 18 are connected to foot switches 21 and 21 via connection cables, respectively.
is connected. The foot switch 21 connected to the upper foot switch jack 18 is connected to the forward key 13.
The foot switch 21 connected to the lower foot switch jack 18 has the same function as the back key 14. A cord from a DC converter is connected to the power jack 19 to supply power. Note that a battery or a rechargeable battery is built into the musical score display device 11. A memory card 9 such as a ROM card or a RAM card is inserted into the card slot 20 . Musical score data is stored in this memory card 9, and the musical score data is read out and displayed on the liquid crystal display device 12. When the memory card 9 is inserted into the card slot 20, the spring type power switch is turned on and the memory card 9 is turned on.
When it is removed, the power switch is turned off.

2. The overall circuit diagram 2 shows the overall circuit of the musical score display device 11. The keys 13 to 15, knobs 16 and 17, foot switch 21, etc. of the switch group 1 are scanned by the scan circuit 2. Through this scan, data indicating whether each key or switch is on or off is detected and written into the RAM 6 by the CPU 5. The data is then compared with data indicating the on/off state of each key and each switch that has been stored in the RAM 6 up to that point, and the CPU 5 determines whether each key is on or off. In addition,
The scan circuit 2 may be replaced with a latch or the like, and the on/off data may be stored in this latch and provided to the CPU 5.

In addition to the data described above, the RAM 6 stores various processing data, as well as song list information and musical score data, which are displayed on the liquid crystal display device 12. The ROM 7 stores programs and the like for the CPU 5 to perform various processes shown in flowcharts described later, and stores musical score graphic data indicating a display pattern of a musical score according to each musical score data and character data corresponding to character codes such as song title data. etc. are memorized.

In addition to the above-mentioned musical score data, the memory card 9 stores each song title data, etc., and these data are read by the CPU 5 and written into the RAM 6. This written data is read out by the CPU 5, converted into the musical score graphic data, written into the image memory 4, and displayed on the liquid crystal display device 12.

The RAM 6 has registers I, M, N,
X etc. are provided. Register I stores cursor point data i. The cursor point data i represents the song number on which the cursor is displayed among the song titles displayed on the liquid crystal display device 12. This cursor point data i is subjected to arithmetic processing to calculate the coordinate data of the head position of the cursor, and the graphic data of the cursor is written into the image memory 4 based on this coordinate data. In the above calculation process, for example, one character is 24 x 24 dots, and the line spacing is 2.
If it is 4 dots, X = cursor point data i x (
24+24)+a, Y=b. a, b are coordinates X=0
, Y=0 to the coordinates of the character in the first row and first column. The graphic data of the cursor is, for example, 2 lines 24
It can be a column dot line.

The register M stores display first bar data m. This displayed first measure data m represents the first measure number of the musical score displayed on the liquid crystal display device 12. Display bar data n is stored in register N. This display bar data n represents the total number of bars of the musical score displayed on the liquid crystal display device 12. Register X stores final bar data x. This final measure data x represents the last measure number of one song.

As described above, since the musical score is displayed electrically, the musical score itself will not become dirty and difficult to see no matter how many times it is used, and the entire musical score display device 11 can be made small and easy to carry. It can be made convenient.

3. Storage Contents of Memory Card 9 FIG. 3 shows the storage contents of memory card 9. This memory card 9 includes an ID field 91, a song name address table 9
2. A music score memory area 93 and the like are provided. The ID field 91 stores bank numbers, sector numbers, head numbers, etc. In the song title address table 92,
Each song name data, the start address data where the musical score data of each song is stored, the total number of songs data, etc. are stored. The musical score memory area 93 stores musical score data for each song.

4. Contents of musical score data FIG. 4 shows the contents of musical score data. This musical score data indicates symbols such as notes, rests, bar lines, etc. The musical score data is 2-byte data as shown in FIG. 4(1). The most significant 1-bit data of the upper 1 byte indicates whether it is a rest, a note ("0"), or a symbol ("1"). Symbols include bar line, sharp, flat, natural, etc. The next 1-bit data is either a note (“0”) or a rest (“1”).
). The next 5-bit data indicates the type of note, the type of rest, and the type of symbol. The lowest 1-bit data of the 1 byte is a spare (“0”). The most significant 1-bit data of the lower 1 byte indicates that the note is a single note (
"0") or a chord ("1"). The next 7-bit data indicates pitch and number of measures. The pitch indicates not only the pitch of the musical note but also the pitch at the position where the above-mentioned sharp is displayed.

The types of notes mentioned above are, for example, whole note "00000(0)", half note "00001(1)", quarter note "00010(2)", as shown in FIGS. 4(2) and (3).
”, eighth note “00011(3)”, and so on. The type of rest above is, for example, a whole rest "00000 (0)"
, half rest "00001(1)", quarter rest "0001"
0(2)", an eighth rest "00011(3)", and so on. The types of the above symbols are, for example, bar line “00000 (0
)”, final line “00001(1)”, sharp “000
10(2)," flat "00011(3)," natural "00100(4)," and so on.

The types of pitches mentioned above are C4 "0111100", C#4 "0111", as shown in FIGS. 4(2) and (3).
101", D4 "0111110", D#4 "0111"
111", E4 "1000000"...C5 "1001"
000", C#5 "1001001", D5 "1001
010”... The number of measures above is "0000001" at the end of the first measure, "000001" at the end of the first measure, and "000001" at the end of the first measure.
0”...

5. Display Processing FIGS. 5 and 6 show flowcharts of the song title data and musical score data display processing. This display process starts when the memory card 9 is inserted into the card slot 20 and the power switch is turned on. In this process, first CP
U5 checks the insertion state of the memory card 9, the stored contents of the ID field 91 of the memory card 9, and determines whether reading is possible or not (step 01). If reading is not possible, the power is turned off (step 02). In this step 02, an error display may be performed.

If reading is possible in step 01 above, the power is turned on and initialization processing such as setting each value of each register I, M, N, and X of the RAM 6 to "1" is performed (step 03). Next, each song title data from the song title address table 92 of the memory card 9 is read out and written into the RAM 6 (step 04). The written song title data is converted into character data via the ROM 7, written into the image memory 4, and displayed on the liquid crystal display device 12 (step 05). Then, cursor display data is written under the character data of the i-th song among these songs to display the cursor (step 06). This i-th cursor point data i is stored in register I of the RAM 6, and in the initial state of step 03, cursor point data i=1, and the cursor is displayed on the first song.

Next, the CPU 5 presses the back (-) key 14.
Or whether the foot switch 21 with the same function was turned on (step 07), or whether the forward (+) key 13 or the foot switch 21 with the same function was turned on (step 08)
, it is determined whether the mode key 15 is turned on (step 09). When the back key 14 etc. is turned on, when the cursor point data i = 1 (step 10), the cursor point data i is set to the maximum value, that is, the total number of songs (step 11), and when the cursor point data i = 1 (step 10), the cursor point data i is set to the maximum value, that is, the total number of songs (step 10), cursor point data i -1
(Step 12). The total number of songs is stored in the song title address table 92. After this, step 06 above
Return to As a result, the cursor displayed on the liquid crystal display device 12 moves to the previous song title.

Further, when the forward key 13 or the like is turned on, when the cursor point data i is at the maximum value (step 13), the cursor point data i is set to "1" (step 14), and the cursor point data i is set to the maximum value. If it is not a value (step 13), the cursor point data i is incremented by 1 (step 15), and the process returns to step 06. As a result, the cursor displayed on the liquid crystal display device 12 moves to the next song title. Furthermore, mode key 1
5 is turned on, the process of displaying the musical score of the song on which the cursor is displayed in steps 21 to 31 described below is performed.

In this process, the CPU 5 first reads the address data of the song title data corresponding to the cursor point data i in the register I of the RAM 6 from the RAM 6, sets it in an address counter (not shown), and stores the corresponding score data in the memory. The data is read from the card 9 and written to the RAM 6 (step 21). Next, graphic data such as staffs, treble clefs, etc. are read out from the ROM 7 and written into the image memory 4 (step 22).

Then, the display bar data n that can be displayed on the liquid crystal display device 12 is counted and written to the register N, and the final bar data x is read from the end of the musical score data and written to the register X (step 23). For example, if the score can be displayed in four stages with four measures per stage on the liquid crystal display device 12, the count of the display measure data n is set to be 16. As the final measure data x, the measure number data in the bar line data at the end of the musical score data is used. Display measure data n starting from these bar lines
The musical score data up to the minute bar line is read from the RAM 6, converted into musical score graphic data, and written into the image memory 4 (step 24), and display measure data n is added to display first measure data m (step 25).

Then, the CPU 5 determines whether the back key 14 or the foot switch 21 with the same function is turned on (step 25), whether the forward key 13 or the foot switch 21 with the same function is turned on (step 27), or whether the mode key 15 is turned on. (Step 28). If the back key 14 etc. is turned on, the displayed measure data n is subtracted from the displayed first measure data m, and when it is less than "0" (step 29), the process returns to step 26, and the result is greater than "0". At this time, twice the display measure data n is subtracted from the display start measure data m (step 30), and the process returns to steps 23 and 24 described above, and a musical score display process is performed based on the new display start measure data m. Thereby, simply by turning on the back key 14 or the like, the musical score data of the previous page can be displayed.

[0028] Furthermore, if the back key 14 etc. is turned on,
When the display first measure data m is greater than or equal to the last measure data x (step 31), the process returns to step 26, and when the display start measure data m does not exceed the last measure data x, the process returns to steps 23 and 24 to create a new measure. Display processing of the musical score is performed based on the display first bar data m. Thereby, simply by turning on the forward key 13 or the like, it is possible to display the musical score data of the next page. Furthermore, if the mode key 15 is turned on, the process returns to step 04, the song title data is displayed again, and the song whose score is to be displayed is selected.

The present invention is not limited to the above embodiments, but can be modified in various ways without departing from the spirit of the invention. For example, music score data showing symbols may also include time signatures, syncopations, slurs, accidental stresses, rate marks, expression marks, repetition marks, decoration marks, etc., and music score data showing musical notes may include dotted notes, May include tuplets, etc. Further, the pages of the musical score data displayed on the liquid crystal display device 12 are shifted by the forward (+) key 13 and the back (-) key 1.
4. In addition to the foot switch 21, any type of switch such as a knee lever, joystick, or knob may be used.

Furthermore, the pages of the musical score data may be shifted sequentially in accordance with the progress of automatic performance such as automatic accompaniment or automatic rhythm performance. In this case, step 23 above,
After 24, the process waits until the automatic performance of a predetermined number of measures, for example, four measures, is completed, and when it is finished, the display start measure data m is incremented by 4, and the process returns to steps 23 and 24. Further, the mode key 15 may be similarly replaced with a foot switch 21, a knee lever, a joystick, a knob, or the like.

In addition, the song title data displayed on the liquid crystal display device 12 may be in any format such as kana, kanji, alphabets, numbers, symbols, etc. Further, the liquid crystal display device 12 is
Display symbol patterns may be incorporated, and each display symbol pattern may be displayed and driven according to musical score data. Furthermore, the liquid crystal display device 12 may be a plasma display, a flat panel television receiver, or the like. Also, the memory card 9 is a floppy disk, CDR, etc.
OM etc. may be substituted. Furthermore, the musical score display device 11 may be detachably attached to the electronic musical instrument.

[0032]

[Effects of the Invention] As described in detail above, the present invention stores musical score information and, in response to an instruction to read the musical score information,
I read it out and displayed it. Thereby, the musical score can be displayed simply by issuing a reading instruction, and it is possible to easily turn pages of the musical score. In addition, since the musical score information can be stored and read out electronically, the musical score itself will not become difficult to read no matter how many times it is used, and the entire device can be made smaller and more portable. It becomes convenient.

[Brief explanation of the drawing]

FIG. 1 is an overall external view of a musical score display device 11. FIG.

FIG. 2 is an overall circuit diagram of the musical score display device 11.

FIG. 3 is a diagram showing the contents stored in the memory card 9. FIG.

FIG. 4 is a diagram showing musical score data.

FIG. 5 is a flowchart of a process for displaying song title data.

FIG. 6 is a flowchart of musical score data display processing.

[Explanation of symbols]

1...Switch group, 2...Scan circuit, 4...Image memory,
5...CPU, 6...RAM, 7...ROM, 9...memory card, 11...music score display device, 12...liquid crystal display device, 13...
Forward key, 14... Back key, 15... Mode key, 18... Foot switch jack, 20... Card slot, 21... Foot switch, 91... ID field, 9
2...Song title address table, 93...Music score memory area.

Claims (3)

[Claims] 1. A storage means for storing musical score information, a readout instruction means for instructing the storage means to read out the musical score information, and a readout for reading out the musical score information from the storage means in accordance with an instruction from the readout instruction means. means and
A musical score display device comprising: converting means for converting the musical score information read by the reading means into information for display; and display means for displaying the information converted by the converting means. 2. The reading instruction means is a means for reading out or displaying musical score information different from the musical score information displayed on the display means in response to a forward operation or a backward operation. Musical score display device as described. 3. The storage means stores musical score information of a plurality of songs and the song title information, the readout means reads out the song title information, and the display means displays the song title information. Item 1. The musical score display device according to item 1.